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Well, there WAS something wrong with the up and downsampling that also caused a lot of annoying artifacts...
But I suppose that there's something else wrong as well. (You did use the beta2, right?) Will look into it again later today.
yes.. beta2 .. downloaded 10 mins ago
I just noticed that when using Virtual Audio Cable, if the Stereo Tool input frequency differs from the output frequency of the other player, really big extra spikes are visible in the display. If I switch the frequency of the other player, they disappear, so that must be caused by Virtual Audio Cable...
The resampling in VAC seems to be pretty bad, so for the best quality, set the ST input frequency to the VAC sampling frequency (probably 44.1 kHz?). The output frequency will then change to 176.4 kHz.
Higher INPUT frequencies (176.4 or 192) are needed for sound cards (like the Juli@) which cannot handle different input and output frequencies. If you are using VAC as input, it doesn't matter.
These problem do not explain your problem - because you say if you click on a few buttons in ST it disappears...
For some reason I'm unable to reproduce your problem... Could you try the following to help me pinpoint the cause?
1. Open Stereo Tool SA, and click RESET.
2. Soundcards: Enable FM output.
3. FM window: Turn FM on, but nothing else!
Q: Do you see the pollution now?
4. Turn pre-emphasis on
Q: Do you see the pollution now?
5. Turn Encode stereo on
Q: Do you see the pollution now?
Thanks...